Sash-holding device



(No Model.)

W. A. SWIFT.

SASH HOLDING DEVICE.

No. 356,177. Patented Jan. 18, 1887.

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UNITED STATES PATENT ()EETCE.

WILLIAM A. SWIFT, or OAK HILL, PENNSYLVANIA.

'SASH-HOLDING'DEVICE.

SPECIFICATION forming part of Letters Patent No. 356,177, dated January 18,1887.

Application filed July 6, 1886. Serial No. 207,177.

. Hill, in the count-y of Lancaster and State of Pennsylvania, have invented certain Improvements in \Vindow-Sashes, of which the following is a specification. v

My invention relates to improvements in window-sashes in which the sash is held in the frame by means of springs to which it is pivoted, and in the use of a movable strip on the inside of the casing; and the objects of my improvements are, first, to hold the sash in place without the use of weights, and, second, to so improve the construction of windows for buildings that the sashes may be cleaned without removing them, and without bending or. getting outside of the window. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a front elevation of my improved window-sash. Fig. 2 is a vertical transverse section of the same with the movable strip removed, and Fig. 3 an enlarged view 'of the spring.

Similarletters refer to similar parts throughout the several views.

A A represent the casing of the window.

A is a movable strip upon the inside of the case, having a tenon, a, at each end, fitting in mortises a in the top and bottom of the case, the lower mortise having aslopinggrooveleading into it to permit the removal of the strip.

. The sash B are set in the frame to the depth of the strip A, so that the removal of the strip allows the sash to be turned about the pivot c, by which they are hung.

The springs c, by which the sash are carried, consist of one piece embracing a pivot, c, by which the sash are held. The ends of the spring for a short distance below the pivot have but a small space between them, which is regulated by means of a set-screw, 0. Below the screw the arms 0 0 of the spring are spread by having a shoulder bent in each, caus- (No model.)

ing the sides of these lower ends to press against the sides of grooves D in the frame in which they slide up and down. The pressure of the spring against the sides of the grooves is sufiicient to support the weight of the sash, but not so great as to prevent them from being moved up and down. Means for adjusting the distance between the ends or arms of the spring (the set-screws c) are used, so that the pressure of the spring against the sides of the grooves D may be regulated, as the swelling of the wood of the frame may cause such tightening of the springs in the grooves as to render their sliding up and down difficult, or the spring may weaken somewhat and the spread of the arms be rendered necessary in order to give them sufficient pressure against the sides of the grooves.

The grooves D are sunk into the frame back of the strip A, so that when the strip is removed the sash can be revolved about the pivots by which they are held. Toward the lower ends of the inner sides of the grooves for the springs short sections, S, of the sides are mortised in place, so that by removing them and 7c the strip A there is sufficient space to allow of the passage of the springs when it is desirable to take out the sash. If it is not desirable that the sash turn in the frame, they can be rigidly attached to the springs.

\rVhat I claim asmy invention, and desire to secure by Letters Patent, is

The combination, with a window-sash and a frame having vertical grooves therein, of springs adapted to slide in said grooves and support said sash, each spring having two arms placed near together for a distance below the point of support for the sash and connected by a set-screw, below which the said arms spread, so as to engage the sides of the groove, substantially as and for the purpose specified.

WM. A. SWIFT.

Witnesses:

J. (Evans KERR, S. D. HUronINs. 

